Container



Aug. 26,V 1930. H. R. -sTuBBvs ET A1. 1,774,299

'CONTAINER Filed June `1,2. 1926 j@ F Ji Patented Aug. 26, 19,30 'l HERBERT R'. sTUBBs AND FRANK WATSON,

OF BALTIMORE, MARYLAND, AsSIGNoRs To THE LAFAYETTE CZOMPANY, 0F BALTIMORE, MARYLAND, A CORPORATION OF MARYLAND s CONTAINER Application led June 12,

This invention relates to improvements in libre containers which are particularly adapted as shipping receptacles for metal sheets.

It has previously been customary tomake lcontainers from fibre or. corrugated board by cutting out a blank for the receptacle which is then folded along scored lines parallel to the edges of the blank, In this way, large portions of the material must be cut away to permit folding; and the folded portions are usually overlapped and cemented together. It is found in practice that even withthe greatest of care, a certain amount of cement will flow onto the top sheet ofthe material in the container, during assembly, 'and that this top sheet must be discarded, particularly with tin plate intended for the manufacture of cans to contain foodstuffs. Likewise, under such conditions, it is necessary to employ a large sheet of fibre material, and to cut away and discard la large portion, in order to afford therproper overlap or else to leave gaps between opposite flaps, whereby the superimposed containers tended to crush infthe ,walls at these gaps, so that the pile of containers was uneven,

and @Ould not be readily hamfued."- In this old arrangement, it was therefore customary to insert a pad l'of fibre ,to fill up this gap,

Vwith resultant expense.

The present invention proposes a departure from such known methods, in that the blank is cut so that the foldinos occur at substantial angles to all edges olf.l the blank, and the edges of the folded sections are brought into such relation to each otherto form one side of the receptacle, that a sin le.Y

thickness of the material exists, and or fastening the folded sections together to close and secure the container means are provided which preferably likewise serve to prevent the cement from soiling the top sheet of material. s

A further advantage exists in the present box in that the corners of the blank are not exposed near the edge of the box as heretofore, but are located near the center of the top. During the preliminary handling of the blanks, and in folding-them down into 192e. ser/m1 No. 115,621.

the final position, they are also not so liable to crumple, since by Avirtue of the peculiar method of cutting, the corrugations of the material in the illustrated example runparallel tothe edges of the folded portions instead of parallel to the edge of the sheet metal to be'contained, in which latter event two of the corners have the corrugations at right angles tothe lines of'stress, and therev,

y.fore tend to bend easily.- The scoring lines may all be at fortyfive degrees to the corrugations in caseof the use of corrugated board, or to the grain in the case of use of solid fibre board: and may be located exactly at the desired point, and not merely at the trough of the corrugated board nearest to such location. The scored lines, when folding is completed, are equally strong, inch for inch.

Another advantage of the present box is that by reason of the location of the cutaway sections and the scorings, and the omission. of all overlaps, a much smaller blank may be employed than heretofore in making a receptacle for sheet materials, of a given standard-size. A peculiar feature of the invention is that a square blank may be 'employed for 'the preparation of a receptacle)` for sheet materials -Which are not square.

Variousbre sheet materials may be Vemployed in making the receptacle such as corrugated boardand solid libre sheeting, of which the former is usually preferred because of its lightness and economy. As set forth above, the present invention provides a, methodof employing corrugated board whereby its `full strength is employed, and the assembled container has' no -Weaknesses owingto bends and folds along vparallel tothe lines of corrugation.

which the blank is made of corrugated board, and the material to be packed is tin v plate of the dimensions of twenty by twenty-eight inches; and 'as usual about- 112 sheets areto be packed in each`receptacle, or a height of pile of one and one-half inches.

The accompanying drawing `illustrates lone manner of applying the invention, 1n

Figure 1 is a plan of a blank, showing the scored, lines and cut-away portions.

Fig. 2 is a similar view of the assembled container.

Fig. 3 is a section, on an enlarged scale, corresponding to line 3-3 of Fig. 2.

The Voriginal blank of corrugated board in this instance is a square having the four edges 10, 11, 12, 13 of thirty-seven and a quarter inches length for the particular. example. I

In preparing the blank for folding, two diagonally opposite corners are clipped at an angle of 45 degrees on the lines 14, 15, which in the .specific example are about four inches between the intersections with the lines 10, 12',`and 11-13. Four notches 16, 17, 18, 19 are cut in the edges 10, 11, 12, 13 in such positions that wh`en their sides are extended by the lines of scoring 20, 21, 22, 23, these latter lines form a rectangle which isv substantially the size of the ,sheet material to be contained; i. e., twenty by twenty-eight inches, and will form the bottoni B of the container. Other scoring lines 24, 25, 26, 27 are then produced upon the blank, which run parallel to the former scoring lines, and separated^ therefrom by substantially the depth, i. e.,-one and onehalf inches, which it is desired to give the completed container,which delimit the sides S1, S2, S3, S4 for the container; and the triangular and truncated triangular iaps F1, F2, F3, F4 which will form the top of th' container. The blank is now completed.

In assembling the blank about the pile of sheet metal T to form the container, it'

is customary with such a blank to place Ifit flat on a suitable surface, and deposit the pile of material accurately in position upon it, within the rectangle B formed by the scoring lines 20, 21, 22, 23. The four sides S1, S2, S3, S4 are then bent upwardlyand the flaps F1, F2, F3, F4 inwardly fab'out the pairs of scoring lines 20-24, 21-25, 22 24, 25, 26, 27 intersecting the blank edgesI 10, 11, 12, 13 at'the mutual intersections 26, 23-27, until the two sections of each ofthe edges 10, 11, 12, 13.0f the original blank, as defined by the notches 16, 17 18, 19 cut therein, are brought into abutting relation with each other. The cut edges of the notches 16, 17, 18, 19 then preferably come into contact, so that the container is closed on all sides, but not sealed.

The lines 14, 15 and the corners 30, 31 are thus brought to the center of the top, and are protected and substantially concealed in a pile of such containers.v Each container has a thickness equal to the pile of tin plate, two layers of lfibre, and the stock sheet.

The preferred method of retaining the folded blank in this position is to place a sheet of heavy paper P `of substantially nonpermeable stock, over the last sheet oftin plate in the particular instance, and to brush a proper'cement suchas sodium silicate, over the four corners of the cut blank, as shown by the dotted areas 28 in Fig. 1. When the blank is then folded over, these coated areas are brought into contact with the n0n-permeable-stock sheet and adhere thereto.

lThe blaiik for the next container is then placed upon the assembled container, and its supply of sheet material put in position. The superimposed weight thus brought upon the filled lower container' serves to hold the subjacentl container with" its folded portions in strict "contact with the stock sheet until drying or setting of the cement has occu ed.

It wil be noted that the portions of the line 10 constituting one edge of the blank, as defined by the notch 16, are equal; that is, the length fromline 14 tothe notch16 is the same as from the corner 31 to this notch: so that when the container is assembled as in Fig. 2, these two portions of the line 10 substantially coincide to form the iat butt joint. Further, the line 14 is parallel to lines 20 and 24 and spaced therefrom a distance equal t0 the normal from the point 31 to the respective lines 21 and 25; The same is true for the twin line 15.

In the particular instance the material for the blank has been illustrated as being corrugated board, Vwith the lines of corrugations running in the direction shown by the dotted lines 29. It will be seen that with this method of cutting and folding the blank, the corners30, 31 and the cut-offs 14 tion running parallely to the scoring lines 20, 21, 22, 23, and hence vthere is no weakness or flexibility of these members. The corrugations likewise cross the scoring lines at and 15 in no case have the lines of corrugac lforty-five degrees, and in no instance run ,Y

parallel to them,` whereby a further increase Vofistrength is assured.

y The illustrated box has the scoring lines with the scoring lines 20, 21, 22, 23, whereby a full abutting joint of the flaps is asshred; but it will be understood that this is not essential in practicing the invention, though preferable as providing a closure for the enclosed material at all sides without any gap or overlap whatsoever.

If desired, the abutment lines of therv folded flaps on the top of the assembled container may be closed by the application of *sealing strips of gummed paper as shown lll) need be cut from each edge of the sheet, so that triangular flaps are formed which may be turned about the moving ,lines at the corners and secured to the adjacent side, to form a corner reinforcement.

The illustrated example shows the production of an oblong container from a squareblank, the length of the lines 14, 15

being substantially the difference between the length and .width ofthe container. If a square container be made, the lines 14, 15 disappear, and the triangular flaps meet at the center. Likewise, the original sheet may be oblong instead of square. l

Containers made fromblanks cut in this manner k,require much less material than those heretofore used, since a saving of around forty per cent in area and weight is effected. n

It is obvious that the invention may be varied from the illustrated form as to material, shape, and dimensions without departing from the scope expressed by the appended claims.

What lis claimed as new is:

1. A folded blank container for sheet material formed from a blank of originally square form and presenting a rectangular bottom with four rectangular sides joined thereto, the corners of the blank being formed as cover flaps, the area of all of said flaps being equal to the area of the bottom; a stock sheet impervious to a cement and located upon the sheet material, said blank being folded about the sheetmaterial and stock sheet so that the flaps extend in mutual abutting relation over said stock sheet in a single plane parallel to the bottom and are supported in such position by the sheet material, and a layer of said cement joining each of said flaps to said stock sheet whereby to close the container, said stock sheet preventing the staining of the sheet material by the cement.

2. A folded-blank container formed from a blank of corrugatedy material of originally square form with the corrugations extendingparallel to edges of the blank, said blank presenting a rectangular bottom formed therein by folding lines which extend ob- -liquely with respect to the corrugations, four rectangular side walls integral with said bottom and respectively joining the four edges thereof, each of said side walls having a cover flap integrally joined thereto at the edge opposite the junction with said bottom, the area of all said flaps being equal .to the area of the bottom, all said cover flaps in the assembled and closed container being located in abutting relationship to eachother and in a single plane parallel to the bottom, and means to hold said cover iiaps in such abutting relationship, whereby the corrugations of said material extend obliquely across the top, sides and bottom ofthe container and traverse each edge thereof at a substantial angle.

3. A blank for forming an oblong con- *tainer comprising a single sheet of libre material of originally square form with diagonally opposite cut-olf corners, said sheet having notches cut in each of its four edges and lines of scoring joining said notches whereby to form a bottom and side walls and cover liaps for the container, the area of all of said aps being equal to the area of said bottom.

4. A blank for forming a rectangular container comprising a single sheet of corrugated material of originally rectangular shape having its cells extending parallel to 'two of its edges, said sheet having scoring lines for folding, all of said lines being oblique to the direction of said corrugations and cells, said lines constituting two groups intersecting each other at right angles to form a bottom and side walls for the container and cover fiaps integral with said side walls, the

f area of all of said flaps being equal to'tlie area of the bottom.

'of such material of originally square form with diagonally .opposite cut-oill corners, said sheet having scoring lines for folding, all of said lines being at a substantial angle to the lines of the corrugations, and notches in the'edges of the sheet adjacent the intersections of the scoring lines therewith, said scoring lines defininga rectangularbottom and side Walls, the remaining portions of the sheet between each scoring line for the top edge of the sidewall and the adjacent corner constituting integral coverliaps, the area of all of said flaps being equal to the are'a of said bottom.

(l. A blank for forming an oblong container from libre material vcomprising a single sheet of such materiahof originally square form, scoring lines onsaid sheet extending at fortyfive degrees to the edges of the 4sheet and defining the oblong bottom of the container, the triangular portions formed by said first scoring lines" and the edges of the sheet being cut away to form notches, secondary scoring lines on said sheet parallel to the respective lirstqlines and spaced therefrom a distance substantially equal to the proposed depth of the container, the corners of the sheet constituting flaps adapted-to be folded over into a single plane to form the top of the container, the corners adjacent thelonger sidesof the container being cut by a line parallel to the scoring lines for such sides and spaced the same distance therefrom as the corners adjacent the -shorter sides of the proposed container, are from their respective scoring lines so that the folded container blank has only one thickness of material at each of its six sides.

7. A wrapper blailk adapted to hold in place and-entirely enclose a pile of oblong- 'rectangiilar sheet vmaterial whereby to form a package .with the same, comprising a single sheet of stiff corrugated material of originally square form, said sheet having corrugations extending parallel to two of its sides alld having scoring lines thereon in rows at mutual right angles and at 45 to the lilies of the corrugations, certain of-said,.

lines defining the bottoiil of the substantial size of theI sheet material to be enclosed, saidv ccrtaiil lines intersecting within the area-of the sheet at distances from the edges thereof which, measured along their respective lengths, are equal to the depth of the pile to be enclosed. said certain lilies forming triangles with the edges of thesheet and at least one of said lilies at each triangle being cut through from the edge of the sheet to thc adjacent intersection, others of said scoring lilies being respectively parallel to said certain lilies and spaced .therefrom the depth of the pile to be enclosed, whereby the sides of the package may be formed in wrapping by folding about said certain lines, alid the top of the package may be :la formed by folding the corners of the blank as flaps about said other lines, diagonally opposite corners being cut away so that the area of all said flaps is equal to the area of the bottom, and said flaps upon assembly may lie in a single plane, and holding means stantiallyilequal to the depth of the coiltailler to be produced and mutually intersecting at right angles, said sheet also having at each edge at least one gash extending to the adjacent intersection oi the innermost `."omliiies of -said pairs, whereby said blank presents a rectangular bottolii separated by scoring lilies from four substantially rec` tangular sides, each of said lsides 'being separated by a scoring lille from a respective flap formed from a corner of the sheet, the

area of allof said ilapsbeing equal to area of the bottom.

9. A rectangular container formed from a blank of corrugated material of originally the 60 square form and llavilig the corrugations extending parallel to edges ofthe blank, said blank having scoring lines at angles of .45 witll'vrespect to the edges and corrugations'to' provide a rectangular bottom and four rectangular side walls at right angles to the' bottom and joined integrally to said bottom, each said side wall being located in the blank between said bottom and a coriler of the original slleet, and four corner xflaps located each between a Side Wall and l:the corner adjacent thereto and joined integrally at one of said scoring'lines to the adjacent side wall, said container having its bottom aiid its cover flaps when closed located in parallel planes and its side walls in planes at rigllt angles to said parallel planes so that the corrugatiolis of said material traverse every top and bottom edge of the container at a substantial angle whereby all said edges are equally strong.

10. A container formed from a single integral square piece of corrugated board having the corlugations extending parallel to side edges thereof aild havingfold lines at angles of 45 with respect to the edges and corrugations and so disposed as to provide a olle=piece rectailgiilar bottom, rectangular sides at right allglcs to the bottom, and flaps adapted to form a closure for the container, said sides beiilg each joined to the4 bottoni at the lower fold line and to a liap at the upper :Fold line, the side edges of said flaps being disposed along lines intersecting each other at right angles, aild the lines of corrugations being disposed so as to extend at an oblique angle across each of said fold lines and intersecting one of the side edges of each flap at a right angle and paralleling the other side edges of each of said flaps, said corrugations ill the flaps when in closed position extending in silbstantially parallel lines diagolially across the entire closed eild.

In testimony whereof, we affix our signatures.

HERBERT R. STUBBS. FRANK WATSON. 

